Egosoft Interactive FAQ

While X Rebirth will play in the future of the same universe and has some ideas and concepts in common, it is not a direct sequel to the X games and therefore not called X4. X Rebirth will not replace the "old" X games. Think of them as two separate series. It definitely makes sense to try out both, even after X Rebirth will be released. For more information on where the differences between the old and new games are, have a look at the general X Rebirth FAQ thread: X Rebirth - The big picture.